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How do I fix the power liftgate malfunction on my 2020 Toyota Highlander? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/How do I fix the power liftgate malfunction on my 2020 Toyota Highlander?

How do I fix the power liftgate malfunction on my 2020 Toyota Highlander?

Toyota Highlander Fourth Generation (2020-present)

Error Codes
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
565 words

Problem Statement

Learn how to diagnose and fix the power liftgate malfunction on your 2020 Toyota Highlander with step-by-step instructions and required tools.

Affected Component
power liftgate

Symptoms

  • •Liftgate Won't Open/Close
  • •Intermittent Operation
  • •Liftgate Opens with Manual Override
  • •Warning Lights

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •Multimeter
  • •OBD-II scanner
  • •Flathead screwdriver
  • •Phillips screwdriver
  • •Socket set
  • •Wire strippers and connectors

Additional Information

Affected Component
power liftgate
Difficulty
medium
Severity
medium
Tools Required
6 items

Related Faults

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Back to Generation
Fixing the Power Liftgate Malfunction on a 2020 Toyota Highlander
Tools Required
  • Multimeter
  • OBD-II scanner
  • Flathead screwdriver
  • Phillips screwdriver
  • Socket set
  • Wire strippers and connectors (if wiring repair is needed)
Repair Instructions

Step 1: Replace the Fuse (if necessary)

  1. Locate the fuse box and find the appropriate fuse for the power liftgate.
  2. Remove the fuse and inspect it; replace it if it is blown.
  3. Reinsert the new fuse and test the liftgate.

Step 2: Replace the Liftgate Switch (if necessary)

  1. Remove the interior panel of the liftgate using a flathead screwdriver and Phillips screwdriver.
  2. Disconnect the electrical connector from the liftgate switch.
  3. Install the new liftgate switch and reconnect the electrical connector.
  4. Replace the interior panel and test the switch functionality.

Step 3: Replace the Liftgate Motor (if necessary)

  1. If the motor is faulty, remove the interior trim panel to access the liftgate motor.
  2. Disconnect the wiring harness from the motor.
  3. Remove the motor mounting screws using a socket set.
  4. Install the new motor, secure it with screws, and reconnect the wiring harness.
  5. Replace the interior trim panel and test the liftgate.

Step 4: Repair Wiring (if necessary)

  1. If damaged wiring is found, cut out the damaged section using wire strippers.
  2. Strip the ends of the wire and connect them using connectors or solder.
  3. Insulate the connections with electrical tape.
  4. Test the liftgate operation after repairs.
Conclusion

After performing the necessary repairs, test the liftgate several times to ensure it operates correctly. If the issue persists, it may require professional diagnosis, as there could be deeper electrical or software-related issues at play. Always refer to the vehicle's service manual for detailed procedures and specifications.